Rocio Maceiras

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INTRODUCTION Bubble columns are widely used in industrial gas-liquid operations (e.g. gas-liquid reactions , fermentations) in chemical and biochemical processes industries, due to their simple construction, low operating cost and high-energy efficiency. In all these processes, gas holdup and bubble size are important design parameters since they define the(More)
The aim of this work was to recycle waste engine oil until converting it into reusable product, diesel fuel. The waste oil was treated using pyrolytic distillation. The effect of two additives (sodium hydroxide and sodium carbonate) in the purification of the obtained fuel was also studied. Moreover, the influence of the number of distillations were(More)
A bubble column was used to study the heat effect on CO 2 absorption in methydiethanolamine solutions and on volumetric mass transfer coefficient. It was found that the temperature varied until 4 ºC between the beginning and the end of the process. Our studies provide an empirical correlation type Boltzmann to estimate the temperature at different amine(More)
The volumetric mass transfer coefficients at different axial positions in a bubble column were measured using a conductivity method. The absorption process of CO 2 in monoethanolamine solutions was carried out in a prismatic column 0.06 m side and 1.03 m height. Measurements were conducted at various gas flow rates and amine concentration. The local mass(More)
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